Visualforce

This component is used to add Salesforce report charts to a Visualforce page. There is an option for data filtering in case you want to see specific results.

Universal table is a component for Salesforce.com, which allows creating a multi-function table with many useful features easily.

A timer that sends an AJAX request to the server according to the time interval that you specify. Each request can result in a full or partial page update. This component is an alternative to using setInterval (js).

ActionFunction is a component, which provides support for invoking controller action methods directly from JavaScript code with the use of AJAX request.